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Bosch GPL100-50G Five-Point Green Self-Leveling Laser
The Bosch GPL100-50G is a five-point green-beam self-leveling alignment laser for transferring level, plumb, 90-degree and grade points. Its integrated multipurpose mount and listed AA batteries and hard case make it a compact layout kit, but it projects points rather than cross-line laser lines.
At a glance
- Five-point projection is described for transferring level, plumb, 90-degree and grade points. It is not presented as a cross-line model.
- The self-leveling pendulum indicates when the unit is out of level, and locks when switched off for transport.
- The integrated mount is described with magnets and a 1/4 in.-20 threaded mounting option, plus 360-degree rotation.
- The manufacturer claims the green beam is up to four times brighter than standard red beams and gives a visible distance up to 125 ft.
Price
$177.62Save 22%
Reference price: $229.00
Price checked: Nov 14, 2026
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Pros and cons
Pros
- Point projection supports common alignment tasks without relying on a manual plumb bob.
- Integrated mounting options and rotation offer flexibility for positioning the laser.
- The included AA batteries and hard carry case mean the listed kit includes power cells and storage.
Cons
- Point projection is less suited to buyers who specifically need continuous horizontal or vertical cross-line coverage.
Technical specifications
18 specifications| Brand | Bosch |
|---|---|
| Model | GPL100-50G |
| Laser classification | CLASS II LASER: <1 mW |
| Operation mode | Automatic |
| Point layout | The three-point lazer leveler tool accurately transfers and aligns level, plumb, 90 degrees and grade points |
|---|---|
| Self-leveling behavior | The smart pendulum system allows this digital leveling tool to self-level, and it indicates out-of-level condition |
| Out-of-level indication range | up to ±4° |
| Accuracy | +/-1/8 inch accuracy at 30 feet. |
| Visible distance | Total visible distance up to 125 ft. |
| Beam visibility claim | The laser level 360 self leveling lines are up to 4x brighter than standard red beams |
| Dimensions listed | 4.5"L x 2"W |
|---|---|
| Weight listed | 16 ounces |
| Mounting options | magnets or a 1/4 in.-20 threaded mount |
| Mount rotation | 360 degree rotation |
| Material listed | Rubber |
|---|---|
| Housing | FULL RUBBER OVERMOLD HOUSING: This helps to protect every major impact point |
| Transport feature | Once this level laser tool is switched off, the pendulum locks; the laser is equipped with 360 degree rotation for extra protection |
| Battery monitoring feature | The built-in laser line technology monitors power consumption to maximize line visibility and extend battery life |
|---|
What’s in the box
Included- GPL100-50G five-point green-beam self-leveling alignment laser
- Integrated multipurpose mount
- 2 AA batteries
- Hard carry case
Who is it for?
A good fit for
- Tradespeople or DIY users laying out level, plumb, 90-degree and grade points.
- Buyers seeking a compact point laser with automatic leveling and a built-in mounting attachment.
Less suited to
- Shoppers who need projected cross-lines or a multifunction laser rather than point alignment.
Customer reviews on Amazon
- 5 stars
81% 81% - 4 stars
10% 10% - 3 stars
4% 4% - 2 stars
2% 2% - 1 star
3% 3%
Customer feedback highlights the green light's visibility, perceived quality, accuracy and compact size. Some feedback is mixed on dot placement and versatility. That distinction matters here because the product is a point-alignment laser, not a multifunction or cross-line unit. Aggregate ratings skew positive, but they do not explain individual experiences.
Positive themes
- Customers describe the green light as bright and easy to see, and mention quality, functionality, accuracy and compact size positively.
Mixed feedback
- Feedback is mixed on dot placement, including differing descriptions of the five-point output.
- Versatility receives mixed reactions, with some appreciating its self-leveling use and others noting it is not multifunctional.
Frequently asked questions
Does the GPL100-50G project cross-lines?
The supplied details describe five-point projection for alignment work, not continuous cross-line projection. Choose a cross-line model if you need wall or ceiling lines.
What does the integrated mount support?
The manufacturer describes magnetic attachment and a 1/4 in.-20 threaded mount, with 360-degree rotation.
What comes in the listed kit?
The listed contents are the GPL100-50G laser, an integrated multipurpose mount, two AA batteries and a hard carry case.
How far is the beam visible?
The manufacturer states a total visible distance up to 125 ft. Actual visibility can depend on jobsite conditions.
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BOSCH PRO GLL50-20 Self-Leveling Cross-Line Laser | VisiMax technology, Smart Pendulum System, 1/8 in. accuracy, contractors, stable mounting, surveying, construction, outdoor
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CIGMAN Gesture Control Laser Level with Side Screen Display, 3×360° Green Self Levelling Lines, Hands Free Gesture Line & Brightness Control, Strobe Mode, 2 Li-ion Batteries, Bluetooth App Remote
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Offer details
- The stated visibility distance and comparative beam brightness are manufacturer claims and can vary with working conditions.
- The listing describes a five-point laser. Confirm that point projection meets the layout needs before buying, especially if continuous cross-lines are required.
$177.62View offer
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